Both patients had extremely low serum copper levels (0.628 µmol/l and 0.314 µmol/l, respectively), anemia, severe neutropenia and unsteady gait that necessitated use of a wheelchair. Intravenous ...

B12 deficiency is often caused by veganism, Crohn's disease, or pernicious anemia. To treat vitamin B12 ... Levels below 200 are considered low and consistent with B12 deficiency.

Cyanocobalamin 1000mcg/mL; soln for IM or SC inj; contains benzyl alcohol. Give by IM or deep SC inj. Pernicious anemia: 100mcg daily for 6–7 days; then 100mcg every other day for 7 doses; then ...